This is reminds me of that story in '05 or was it '06 about the homosexual guy who claimed to have had several partners with AIDS or HIV+ and was volunteering his body for research, he believe he was immune to the disease. I can't remember all the details but I do remember it was a convincing enough story that I think one of the big wig pharma boys picked him up, but haven't ever heard from him or about the story every since.

I am not much of a conspiracy theorist, but it has to be infinitely more profitable to "treat" a disease, rather than cure/eradicate one.

Pharmaceutical companies are not investing in it because it is a generic drug that is already being produced.
If water cured cancer, you wouldn't ask drug company to invest in water.
That doesn't make them evil. That won't stop doctors and hospitals from using the drug.

Also, a little research reveals that the drug is still in trials, the media is paying attention to it if you know where to look, it takes three months to get the drug up to blood levels where it will stop the growth of cancer, and even then it's not a magic bullet cure.
It stops the growth of tumors, but it doesn't target and kill them.
This drug will need to be used in combination with other treatments.
Some side effects, such as nerve malfunction, have been found, and the drug is still being tested for other side effects.